Non Root user for docker images

[rvramesh]

I was going over https://github.com/dotnet/dotnet-docker/blob/main/samples/aspnetapp/Dockerfile.alpine-x64-slim and observed we are not creating a non root user to run the final app which seems to be a security best practice. Is this understanding correct and what needs to be done to ensure the docker uses non root user.

[mthalman]

This is identified in #1772. That would address overall documentation and the sample Dockerfiles themselves.

[rvramesh]

Thanks you so much